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Cushion|Natural|GIA

1.54ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1557335199

Certificate GIA 1557335199

Diamond specifications and retailer prices

From £3,293 GBP
$4,419 USD
As of November 2, 2026
Save £3,040 GBP (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,333 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557335199. Listed at 7 retailers as of November 2, 2026, with prices from £3,293 to £6,333, a £3,040 spread on the same certified stone. MOH London lists it at £6,333. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557335199
Dimensions7.36 × 5.87 × 4.03 mm
L/W Ratio1.25
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.36 mm5.87 mm1.54 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557335199
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £6,333 GBP|Low: £2,745 GBP|High: £6,437 GBP|Avg: £4,081 GBP|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8£3,220 GBP
Retailer 6£3,293 GBP
Retailer 7£3,577 GBP
Retailer 9£3,637 GBP
Retailer 2£3,773 GBP
Retailer 10£3,993 GBP
Retailer 5£4,388 GBP
Retailer 3£4,499 GBP
Retailer 4£4,888 GBP
MOH London£6,333 GBP

43 data points across 10 retailers

7 retailers£3,293 GBP to £6,333 GBP

A
Cheapest Retailer
-
£3,293 GBP
$4,419 USD
Final sale: no returns
B+
Retailer 2
-
£3,577 GBP
$4,800 USD
View
B+
Retailer 3
-
£3,773 GBP
View
B+
Retailer 4
-
£3,950 GBP
$5,300 USD
View
B+
Retailer 5
-
£4,499 GBP
€5,750 EUR
View
B+
Retailer 6
-
£4,888 GBP
ZAR 105,961 ZAR
View
Most Expensive
B
MOH London
0E3BAF8C7 · Nov 2
£6,333 GBP
View
6 more retailers have this diamond
Prices start from £3,293 GBPSave up to £3,040 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.54ct Cushion
£3,293 GBP